Am 15.03.04, 15:17 -0000 schrieb John Cupitt: > Hi Kai-Uwe, > > Kai-Uwe Behrmann wrote: > > I read the Eye One color measurement device can been used for > > device calibration. Did somebody us it to measure real world colors and > > intensities? Is it useable for reflective measuring like paintings. > > Disclamer: I don't have an eye one, but I do know a little about measuring paintings. > > I'm not sure this will work very well. A large part of making accurate reflectance > measurements from complex surfaces like paintings is good lighting. You need a > sensor with a controlled light source, correct illumination geometry (for things > like specular included and excluded), and usually an integrating sphere to make sure > the light is mixed correctly. > > Plus colorimeter-type sensors usually have at least 4 filters (I know the minolta > detectors do) for accuracy, since filters with the CIE curves are hard to > manufacture. I imagine (guess) the eye one will just have three filters. Plus I also > guess the eye one filters would be selected to measure the colour of typical > phosphors, not any real-world object. > > Have you considered calibrating a digital camera? They are (perhaps) easier to > control, and the colour accuracy might be good enough for you.
Not yet, I wanted to do it the accurate way first. Maybe it is worth an test with an calibrated camera. Hope the precission suffers not too much this way. Have You any experiences doing so? > John > Kai-Uwe ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ Lcms-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/lcms-user
